Find the equation of the straight line which pass through the following pairs of point (3,0)and(2,1)

(y-0)/(x-3) = (1-0)/(2-3)

y = (x-3) ( 1/-1) = -x + 3
y = -x + 3
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check
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(3,0)?
y = -3+3 yes !
(2,1) ?
y =-2 + 3 = 1 YES !! we did it